Steam-boiler.



J. L. JENSEN 6: H. DENISON.

STEAM BOILER.

APPLICATION FILED we. 2. 1910.

988,717; Patented Apr. 4, 1911.

VENT R8 1/06 0 Z7. ewe p A TTOR/VE Y 8 UNITED STATES PATENT OFFICE.

JOSEPH L. JENSEN, OF RICHFIELID, AND HYRUM DENISON', OF MANTI, UTAH.

STEAM-BOILER.

Specification of Letters Patent.

Patented Apr. 4, 1911.

To all whom it may concern:

Be it known that we, JOSEPH L. JENSEN, a resident of Richfield, in the county of Sevier and State of Utah, and HYRUM DENISON, a

5 resident of Manti, in the county of Sanpete and State of Utah, both citizens of the l 7 United States, have invented a new and Improved Steam-Boiler, of which the followging is a full, clear, and exact description.

The invention relates to steam traction engines and similar vehicles, and its object is to provide a new and improved steam boiler arranged to insure at all times proper delivery of dry steam to the engine, whistle or other device, and irrespective of whether the steam boiler is on the level or inclined in either direction on the vehicle going up or down a hill.

For the purpose mentioned, use is made of steam domes at the forward and rear ends of the boiler, a steam delivery pipe having i its ends extending into the said domes, and float-controlled steam inlet valves for the ends of the said pipe, the floats being controlled by the water rising and falling in the said domes.

A practical embodiment of the invention is represented in the accompanying drawings forming a art of this specification, in which similar ciiaracters of reference indicate corresponding parts in all the views.

Figure 1 is a longitudinal central section of the improved steam boiler as applied to a traction engine going up a hill; Fig. 2 is an enlarged sectional side elevation of the forward dome and the valve connection for the steam delivery pipe; and Fig. 3 is a plan view of the same, the dome being shown in section.

The shell A of the boiler is mounted in the usual manner on suitable wheels B, and

" within the shell A is arranged a fire box O plainly indicated in Fig. 1, so that when the traction engine or other vehicle travels down a hill the lowermost portion of the crown sheet 0 is still under water and hence the crown sheet is not liable to become overheated.

On the forward and rear ends of the shell A are arranged steam domes F, F, into which extend the ends G, G of a steam delivery pipe G extending lengthwise within the shell A, which latter is provided with openings A, A at the bottoms of the domes to allow the steam generated in the shell A to pass into the domes F, F. The ends G, G of the delivery pipe G are provided wlth nipples H, H, assing through the walls of the domes F, F to the outside thereof. One of the nipples, as shown the nipple H, is closed by a cap I'll and the other is connected by a pipe H with the engine of the vehicle and with a whistle I, as shown in Fig. 1. It is understood that the nipple H or H which is nearest the engine steam chest is connected with the same. On the u per ends G, G of the steam delivery pipe G are arranged valve casings J, J, preferably bolted or, otherwise fastened to the inside of the domes F, F, and the said valve casings J, J are provided with valve seats J J 3 having their outer faces in segmental shape engaged by correspondingly-sha ed valves K, K mounted on levers K K ulcrumed on the valve casings J, J, respectively. The levers K K are pivotally connected by links L, L with the stems N N of floats N, N contained within the steam domes F, F and rising and falling with the water passing into the steam domes F, F through openings A, A formed in the shell A of the boiler. The stems N N of the floats N, N are mounted to slide in suitable guideways N, N arranged on the domes F, F, and the shell A of the boiler, as plainly indicated in Fig. 1.

When the vehicle travels on the level ground the water level within the shell A is below the domes F, F, and consequently no water is contained in the said domes, and the floats N, N are consequently in a lowermost position, so that the valves K, K are held ofi' the seats J J to allow the steam generated in the shell A and passing by way ed =the usua l manner.

When the vehicle travels up a hill, as in; I

dicated in Fig. 1, then the water in the sl'r'ell A flows through the rear end thereof and passes t/"hroi r'gh the openings A into the dome F-, w=h'ereby the float N is moved upward, and in doing so it moves the valve K over the seat J to close the same, thus shuttlflg oil the steam contained in the dome 1T from the pipe G. As the steam dome 53 is free of water at this time, the valve "K remains open and consequently the steam gene-r-ated in the shell A p'asses by way of the openings A into the dome F and through the o en valve seat J easing J and end G" into the steam delivery pipe Gr tosaqaply the engine with ehe rrecessairy dry steam.

When the vehicle travels down a hill the wa ter the shell A flows to the front end thereof and passes way ott the openings A :into the steam d orne to lift the tloat N and pause the valve K to move into a closed positioi'i on the valve seat J thus shutting oh the end G fr-omthe interior o f the dome F. At this time the dome F is tree of water, and its fi'oait N is in a lowermost pcsiti'on, consequently, the valve K is open so that the steam generated in the shell A flow by way of the o enings 4A3 intothe steam donae F and through the open valve seat'd into the valve easin -J and by way of the pipe end G into the pipe G to supply the engine with dry steam. I g

' In ease one of the float co'ritrolled mechanisms i n the steam domes F and F should get out of order, the eorrespondihg valve seat J or J may be closed by inanu allyoohtrolled valves 0,0" adapted to engage the inner faces of the valve seats and extending to the oat-sideofthe domes F, F to within corrvenient reae'h eff the operator. A "small drain pipe P is 'cOnnecIted with the steam @lBl-iVeTy pipe Gr and extends throughthe rear end of the shell A, andon the enter end of the drain "pipe P is arranged a drain c'ock P which when opened drains the -Water of condensation from the pipe Gr, thus relieving the pipe 'Gr "oi"? all water of condensation.

The domes F, F "are provided with *suitable hand holes F, F to permit access to the interior of the domes and the parts contained therein, for repairing or other pur- Having thus described our invention, we

claim as new and desire to secure by Letters Patent .1. A steam boiler provided at its ends'75 with domes, a steam delivery pipe having its en'dsehtending in the said domes, valves controlling the ends of the said pipe, and floats rising and falling with the Water in the said domes and :con neoted with the said "vailves valves for elesing openingithe said valve p seats, and l lo'aits 1 sing aJncl dialling with "the waterjih the said domes and conneoted with the said lever :3. A steam boiler provided at its ends 7 with =rl'omes, :a steam dehvery pipe having i' ts ends extending in the said domes, valve casings on the said pipe ends-and havingvalve seat-s opehu h'g into the domes, ilever' valves for closing and opening thesaid valve seats, floats a ising -.and fallin with the water in the said domes and connected with the said lever valves, and inaanually controlfled v lves roe opening and closing the said valve seats within fthe said valve casings.

4L. A steani boiler provided :at its'ends wrath domes comnannioatmg thersnv-ith, :a steam delivery pipe extending lengthwise of the boiler and having its ends extending into the domes, valve casings on the "ends on": the said {pipes and having valve seats, "the outer faces of which are segmental, levers vfulcruna'ed on the valve-casings and having segmental valves engaging the said seats, floats in the domes and connected with the said valve carrying levers, and manually con-- trolled valves adapted to engage the inner faces of the VQI lVC-B SGatS.

A steam boil'er rovided :at its ends with domes, a delivery pipe having :its ends extending in the said domes, 'vailve casings on the said pipe ends and having valve seats, the outer :tae'e's of which are segmental, leve'r "valves fialeruihed on the said valve casings, en aging the said segmental seats to open and close the same, floats within the said *domes and r isin g "and falling with the water the said domes and connections between the said floats and the said lever valves.

6 In a steam boiler, a dome upon the boiler and communicating therewith, a steam pipe extending from the boiler into the dome, a valve casing on the end of the steam names to this specification in the presence of subscribing witnesses.

JOSEPH L. JENSEN. HYRUM DENISON. lVitnesses to the signature of Joseph L. Jensen:

VIOLA BURR, J ENNIE JoReENsoN. Witnesses to the signature of Hyrum Denison:

JAMES Fnos'r, SAMUEL DAVENPORT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

